so he decided to go it alone, founding m.g.g. consulting to advise other small businesses. >> hanging up a shingle and rolling your own business and opening up the bank accounts, and getting the company name, and promoting, and all that stuff is not for everybody. but, if it's for you, it's a lot of fun. i had no job, no money, no customers, no nothing and today i have 40 clients. i've hired someone full-time. i've grown, but it's been hard work. >> reporter: how old is too old? >> i think i can do this until 80 or 90, alright, and the reality is i don't think you can think in terms of too old. it's how you feel, it's how much fire you have, and if you're smart and you realize you're getting older, well then get into a business where you leverage the younger people and eventually you become the great gray god. >> reporter: marc freedman runs a non-profit called encore.org.